Pinout Values and Diagnostic Parameters

INSPECTION OF ECU

NOTE: The EFI circuit can be checked by measuring the resistance and voltage at the wiring connectors of the ECU.

1. INSPECT VOLTAGE OF ECU
Check the voltage between each terminal of the wiring connectors.
- Turn the ignition switch ON.
- Measure the voltage at each terminal.

NOTE:
- Perform all voltage measurements with the connectors connected.
- Verify that the battery voltage is 11 V or more when the ignition switch is ON.





Voltage of ECU Wiring Connector





2. INSPECT RESISTANCE OF ECU

CAUTION:
- Do not touch the ECU terminals.
- The tester probe should be inserted into the wiring connector from the wiring side.

Check the resistance between each terminal of the wiring connectors.
- Disconnect the connectors from the ECU.
- Measure the resistance at each terminal.





Resistance of ECU Wiring Connectors